How should a driver shutdown a taskqueue on detach?

[Eric Joyner]

Or like, "taskqueue_enqueue_if_not_draining()" ? :p

On Wed, Jul 1, 2015 at 2:32 PM Konstantin Belousov <kostikbel at gmail.com>
wrote:

> On Wed, Jul 01, 2015 at 05:09:27PM -0400, Ryan Stone wrote:
> > On Wed, Jul 1, 2015 at 4:58 PM, Jack Vogel <jfvogel at gmail.com> wrote:
> >
> > > But if you've disabled interrupts why would an "interrupt-handling
> task"
> > > even run??
> > >
> > > Jack
> > >
> >
> > There's a race.  The task could have already have been scheduled by a
> > previous interrupt and could be running while I am trying to disable
> > interrupts and drain the taskqueue.
>
> Do you mean, you want some KPI like
>         boolean taskqueue_is_draining(struct taskqueue *p);
> so that e.g. executed task could see if it is executing in the
> shutdown state ?
>
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